Monero

In case 1), there's a transaction that uses multiple (real) inputs from the same address. In case 2), a similar transaction uses multiple inputs from multiple subaddresses (let's say 1 input per subaddress).

Do the two look similar to an outside observer?

Which one is more desirable and why?

Hi, I tried to pay with Monero but encountered a strange issue: In my wallet my transactions have hight about of 1557477 and has lots of conformations But at the same time https://xmrchain.net/ shows that the latest block is 1556988! And the vendor doesn't see that I sent him the money!

I used Monero before and had no problems in paying with it, but now it acts in a strange way. Was there a fork? How can I fix this problem?